Hey chief when I ordered the lines from Caddis fly shop I spoke to one of the guys over the phone and asked if they could recommend and reliable method for loops on the miracle braid. He told me not to worry about it and they would take care of it for me. When the spools came all 3 were neatly welded at both ends with some sort of black sleeve. I'm not sure exactly what they use but it's very clean looking thin smooth material, slides through guides very easily. I can take some pictures of it close up and send them to you tomorrow if u'd like.